Open Trivia DB

Open Trivia DB API provides free, unauthenticated REST JSON endpoints for retrieving trivia questions in various categories (science, history, entertainment, etc.), with query parameters for amount (max 50), type (multiple choice or boolean), difficulty, and encoding. Session tokens can be used to avoid duplicate questions.

Endpoints

Views

Jul 20, 2025

Last Checked

Unlimited

Rate Limit

API Endpoints

Retrieve random trivia questions from various categories

Full URL

https://opentdb.com/api.php/api.php

Code Examples

curl -X GET 'https://opentdb.com/api.php/api.php'

Parameters

{
  "type": "multiple",
  "amount": "10",
  "category": "18",
  "difficulty": "medium"
}

Example Response

{
  "results": [
    {
      "category": "Science: Computers",
      "question": "What does CPU stand for?",
      "correct_answer": "Central Processing Unit",
      "incorrect_answers": [
        "Central Process Unit",
        "Computer Personal Unit"
      ]
    }
  ],
  "response_code": 0
}

Version

v1

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